This collection of data files is being shared with you through Arvados. You can download individual files listed below. To download the entire directory tree with wget, try:

$ wget --mirror --no-parent --no-host --cut-dirs=1 https://15f5c52ba5c4f087f4d0ab54f29db83b-952.collections.su92l.arvadosapi.com/_/

File Listing